Tehuantepec Forecast

December 9, 2025, 3:01 am (UTC: -05:00)
Subject: Tehuantepec Forecast

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This forecast has not been reviewed. It was generated from an automatic model.

.WARNINGS.

...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 15N95W TO 14N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
40 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO
16N96W TO 13N97W TO 12N96W TO 13N94W TO 16N94W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 14N98W TO 13N98W TO
13N96W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE
WITHIN 14N94W TO 15N94W TO 13N98W TO 13N100W TO 11N101W TO 11N97W
TO 14N94W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 14N95W TO
15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS
20 TO 30 KT. SEAS LESS THAN 2.5 M.

.WITHIN 16N94W TO 16N95W TO 15N95W TO 14N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
40 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO
16N96W TO 13N97W TO 12N96W TO 13N94W TO 16N94W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 14N98W TO 13N98W TO
13N96W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE
WITHIN 14N94W TO 15N94W TO 13N98W TO 13N100W TO 11N101W TO 11N97W
TO 14N94W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 14N95W TO
15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS
20 TO 30 KT. SEAS LESS THAN 2.5 M.

GULF OF TEHUANTEPEC GALE WARNING: HIGH PRESSURE CONTINUES TO
BUILD OVER THE EASTERN SLOPES OF MEXICO IN THE WAKE OF A COLD
FRONT EXITING THE GULF OF AMERICA TO THE SE. THE PRESSURE
GRADIENT BETWEEN THIS AREA OF HIGH PRESSURE AND LOWER PRESSURE
WITHIN THE EASTERN NORTH PACIFIC MONSOON TROUGH IS USHERING IN
GALE-FORCE GAP WINDS IN THE GULF OF TEHUANTEPEC AS DEPICTED ON
RECENT ASCAT DATA WITH PEAK WINDS LIKELY AROUND 40 KT FOR THE
NEXT FEW HOURS. GALE-FORCE WINDS WILL THEN LIKELY PERSIST
THROUGH MUCH OF TONIGHT. VERY ROUGH SEAS, PEAKING AROUND 12 OR
13 FT, ARE EXPECTED WITH THIS EVENT THROUGH EARLY TODAY. OF
NOTE: THE MONTHLY DISTRIBUTION OF TEHUANTEPEC EVENTS SHOWS THAT
THE LARGEST NUMBER OF GALE FORCE EVENTS OCCURS IN DECEMBER.
STORM-FORCE EVENTS OCCUR MOST OFTEN IN JANUARY. PLEASE READ THE
LATEST HIGH SEAS ISSUED BY THE NATIONAL HURRICANE CENTER AT
WEBSITE:
HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIAHSFEP2.SHTML

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ASIDE FROM CONDITIONS IN THE GULF OF TEHUANTEPEC, A RIDGE
EXTENDS FROM HIGH PRESSURE LOCATED N OF THE AREA TO ACROSS THE
OFFSHORE FORECAST WATERS OF BAJA CALIFORNIA. THE PRESSURE
GRADIENT BETWEEN THIS RIDGE AND A TROUGH OVER WESTERN MEXICO IS
SUPPORTING FRESH TO LOCALLY STRONG WINDS OVER THE GULF OF
CALIFORNIA, AND GENTLE TO MODERATE WINDS OVER THE WATERS WEST OF
THE BAJA CALIFORNIA PENINSULA PER RECENT ASCAT SCATTEROMETER DATA,
EXCEPT LOCALLY FRESH NEAR THE REVILLAGIGEDO ISLANDS DUE TO A
SURFACE TROUGH LOCATED JUST BEYOND THE OFFSHORE WATERS. LIGHT TO
GENTLE WINDS AND MODERATE SEAS IN LONG PERIOD NW SWELL ARE NOTED
ACROSS THE REMAINDER OF THE MEXICAN OFFSHORE WATERS.
FOR THE FORECAST, GALE-FORCE NORTHERLY GAP WINDS IN THE GULF OF
TEHUANTEPEC WILL PEAK AROUND 40 KT EARLY TODAY, WITH GALE-FORCE
WINDS CONTINUING THROUGH MUCH OF TONIGHT. OCCASIONALLY FRESH TO
LOCALLY STRONG NW TO N WINDS AND MODERATE SEAS ARE EXPECTED IN
THE CENTRAL GULF OF CALIFORNIA THROUGH THIS MORNING. FRESH N
WINDS MAY DEVELOP NEAR CABO CORRIENTES TONIGHT THROUGH WED
NIGHT.

FOR THE FORECAST, MAINLY GENTLE WINDS WILL PREVAIL N OF THE
MONSOON TROUGH OVER THE NEXT SEVERAL DAYS, EXCEPT PULSING TO
MODERATE TO FRESH IN THE GULF OF PAPAGAYO, LOCALLY STRONG AT
TIMES. GENTLE TO MODERATE WINDS WILL PREVAIL S OF MONSOON TROUGH.
MODERATE N WINDS WILL PULSE IN THE GULF OF PANAMA STARTING TONIGHT.
SEAS GENERATED BY A GALE-FORCE GAP WIND EVENT IN THE GULF OF
TEHUANTEPEC ARE EXPECTED TO SPREAD ACROSS THE OUTER OFFSHORE
WATERS OF EL SALVADOR AND GUATEMALA TODAY AND TONIGHT.
OTHERWISE, MODERATE SEAS IN MIXED SW AND NW SWELL ARE EXPECTED
OVER THE REGIONAL WATERS THROUGH THE WEEK AND INTO NEXT WEEKEND.

SHORT-TERM TEHUANTEPEC
TODAY - N 29-36, Seas NNW 10-10.4 ft @ 7sec
TONITE - N 17-21, Seas NNW 6.9-7.3 ft @ 7sec
WEDNESDAY - N 17-21, Seas NNW 6.9-7.3 ft @ 7sec
WEDNESDAY NIGHT - NNW 14-17, Seas SSW 1.2-3.1 ft @ 12sec

LONG-TERM TEHUANTEPEC
THURSDAY - NNW 16-20, Seas SSW 2-3.4 ft @ 14sec
FRIDAY - Not available yet
SATURDAY - Not available yet
SUNDAY - NNW 19-24, Seas N/A ?-? ft @ ?
MONDAY - N 18-23, Seas N/A ?-? ft @ ?